EP 3699243 B1 20230816 - AQUEOUS INK
Title (en)
AQUEOUS INK
Title (de)
WÄSSRIGE TINTE
Title (fr)
ENCRE AQUEUSE
Publication
Application
Priority
- JP 2017200635 A 20171016
- JP 2018038296 W 20181015
Abstract (en)
[origin: EP3699243A1] The present invention relates to [1] a water-based ink containing an azomethine metal complex pigment (A), an aromatic group-containing polymer (B), an organic solvent (D) and water, in which a mass ratio of the azomethine metal complex pigment (A) to the aromatic group-containing polymer (B) [(A)/(B)] is not less than 1.4 and not more than 4, and the aromatic group-containing polymer (B) is a crosslinked polymer obtained by crosslinking an aromatic group-containing polymer (b) having an acid value of not less than 80 mgKOH/g and not more than 400 mgKOH/g with a water-insoluble polyfunctional epoxy compound (c), said water-based ink being excellent in storage stability and maintenanceability, and [2] a process for producing a pigment water dispersion liquid of particles of the aromatic group-containing polymer (B) containing the azomethine metal complex pigment (A).
IPC 8 full level
C09D 11/326 (2014.01); B41J 2/01 (2006.01); B41M 5/00 (2006.01); C09D 11/03 (2014.01); C09D 11/037 (2014.01); C09D 11/106 (2014.01); C09D 11/107 (2014.01); C09D 11/322 (2014.01)
CPC (source: EP US)
B41J 2/01 (2013.01 - US); B41M 5/00 (2013.01 - US); C09D 11/03 (2013.01 - US); C09D 11/037 (2013.01 - US); C09D 11/106 (2013.01 - EP); C09D 11/107 (2013.01 - EP); C09D 11/322 (2013.01 - EP US); C09D 11/326 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3699243 A1 20200826; EP 3699243 A4 20210721; EP 3699243 B1 20230816; CN 111194338 A 20200522; CN 111194338 B 20220826; ES 2955559 T3 20231204; JP 2019073626 A 20190516; JP 6981624 B2 20211215; US 11535765 B2 20221227; US 2020248013 A1 20200806; WO 2019078151 A1 20190425
DOCDB simple family (application)
EP 18867470 A 20181015; CN 201880065277 A 20181015; ES 18867470 T 20181015; JP 2017200635 A 20171016; JP 2018038296 W 20181015; US 201816756037 A 20181015